The heart of a TB303 synth recreated in modular format.

x0x-heart Module

Orders placed now ship Mar 21, 2019.

Free US Shipping / $15 Worldwide

$225

x0x-heart Module - Kit

Build your own module - the kit includes the panel, the pacemaker, the x0x-heart itself, knobs, Euro cable, etc. Some patience + a soldering iron, and you've got yourself a module. All required soldering is through-hole.

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"If you're a fan of acid bass, the original TB-303 and Eurorack synth modules, then this one is for you… With the module being sold for the appropriate sum of $303 it’s easy to see why this has been snapped up so quickly."

The Roland TB303 voice practically defined Acid music, heavily influencing the development of electronic music. Add that voice to your own setup with the x0x-heart Eurorack Module.

The x0x-heart module is the analogue section extracted from the x0xb0x (a TB303 clone) and made small enough to fit the Eurorack format. More nimble as a module, you no longer need to work within the constraints of the original TB303’s sequencer.

2013 Flashback: a x0x-heart prototype - slaved to a TB303:

Special Thanks

”Well my favorite thing about this module is how close it sounds to the real deal and I can sequence it with a less archaic sequencer. (I personally don’t gel with the x0x style sequencer.)
I recommend people pair it with a sequencer that has adjustable gate length per step like the Audio Damage Sequencer 1 or Industrial Electronics (Harvestman) Stillson Hammer MKII.“